can_loopback_node.txt

freescale k40/k60 cortex m4 library

This project is a simple can_loopback_node example. It requires at least two CAN nodes: 
Node A is running sci2can or any other CAN application with internal loopback disabled;
Node B is running can_loopback_node code. 
The example echoes all messages to the remote node (Node A).
The default CAN bit rate is 83.33K.

By default the OS-JTAG is used for the terminal output. The terminal should be configured for 115200 8-N-1.

Supported platforms:
- TWR_K40X256
- TWR_K60N512

The can_loopback_node.eww file will open the project for all of the supported platforms. 
Pick the specific project that corresponds to your hardware.

NOTE: if switching between platforms it is a good idea to do a make clean to make sure the code
 is properly configured for the new platform.

Instructions on how to play with sci2can node (Node A):
1) Open sci2can.eww workspace, and change both FLEXCAN_SELF_RECEPTION and FLEXCAN_LOOP_BACK macro values to 0 in can_config.h as below: 
#define FLEXCAN_SELF_RECEPTION    0
#define FLEXCAN_LOOP_BACK         0

2) Select "FLASH_256KB_PFLASH_256KB_DFLASH" as the active configuration for the project;
3) Rebuild the whole project;
4) Select "Project->download and debug";
5) Select "Debug->Go" to run the code;
6) Switch off the power to the tower system Node A and disconnect the JTAG connection from the emulator and PC to the Node A;
7) Connect one end of the CAN cable to J7 on TWR-SER module of the Node A tower system , 
the other end to the J7 on another set of TWR-SER module of K40 or K60 tower system (Node B);
8) Connect JTAG connector from the emulator to the tower system Node B and PC;
9) switch on the power to the tower system Node B;
10) open can_loopback_node workspace by double-clicking on can_loopback_node.eww
11) Select "FLASH_256KB_PFLASH_256KB_DFLASH" as the active configuration for the project;
12) Rebuild the whole project and then select "Project->download & debug";
13) Select "Debug->Go" to run the code on the tower system Node B;
14) switch on the power to the tower system Node A to run sci2can demo;
15) follow aforementioned instructions to play with sci2can demo;